GPS data reveal that young people encounter fewer individuals from diverse groups than do adults. The isolation of young people is exacerbated in larger cities, and for those living in poverty. Abstract from a paper: We find that students in major metropolitan areas experience more racial and income isolation, spend more time at home, stay closer to home when they do leave, and visit fewer restaurants and retail establishments than adults. Looking across levels of income, students from higher-income families visit more amenities, spend more time outside of the home, and explore more unique locations than low-income students. Combining a number of measures into an index of urban mobility, we find that, conditional on income, urban mobility is positively correlated with home neighborhood characteristics such as distance from the urban core, car ownership and social capital.

ScienceAlert reminds us that plants exude "a fine mist of airborne compounds that they use to communicate and protect themselves." And while they've been detected in over 80 plant species, now researchers have applied real-time imaging techniques "to reveal how plants receive and respond to these aerial alarms." Yuri Aratani and Takuya Uemura, molecular biologists at Saitama University in Japan, and colleagues rigged up a pump to transfer compounds emitted by injured and insect-riddled plants onto their undamaged neighbors, and a fluorescence microscope to watch what happened. Caterpillars (Spodoptera litura) were set upon leaves cut from tomato plants and Arabidopsis thaliana, a common weed in the mustard family, and the researchers imaged the responses of a second, intact, insect-free Arabidopsis plant to those danger cues.

These plants weren't any ordinary weeds: they had been genetically altered so their cells contained a biosensor that fluoresced green when an influx of calcium ions was detected... [T]he team visualized how plants responded to being bathed in volatile compounds, which plants release within seconds of wounding. It wasn't a natural set-up; the compounds were concentrated in a plastic bottle and pumped onto the recipient plant at a constant rate, but this allowed the researchers to analyze what compounds were in the pungent mix...

[T]he undamaged plants received the messages of their injured neighbors loud and clear, responding with bursts of calcium signaling that rippled across their outstretched leaves... [G]uard cells generated calcium signals within a minute or so, after which mesophyll cells picked up the message... "We have finally unveiled the intricate story of when, where, and how plants respond to airborne 'warning messages' from their threatened neighbors," says Masatsugu Toyota, a molecular biologist at Saitama University in Japan and senior author of the study.

We already know that a precise range of wavelengths within daylight triggers a light-sensitive photoreceptor in the back of your eye, causing the body's internal clock to reset.

Those receptors are called "intrinsically photosensitive retinal ganglion cells" (or ipRGCs), according to Science Alert — although the actual color is perceived by some nearby cones (which then send information back to those rceptors).

But are our bodies really affected specifically by the perceived color? Chronobiologist Christine Blume investigated with a team from Switzerland's University of Basel and Germany's Max Planck Institute for Biological Cybernetics: Modern scientific wisdom advises us to avoid devices that emit a significant amount of blue radiance, such as our smartphones, computer monitors, and tablets, when we ought to be wrapping ourselves in darkness and resting. There's perfectly sound reasoning for this — the ipRGCs in our eyes react to short wavelengths of electromagnetic radiation, roughly 490 nanometers in size... Given blue light scatters from the sky during daylight hours, it makes sense our eyes would use this wavelength as a cue to mark the beginning and end of sleep time...

Yet University of Basel chronobiologist Christine Blume had her suspicions that the way a light's mix of wavelengths influenced the color-reading cones could mean there's more to the phenomenon than meets the eye. "A study in mice in 2019 suggested that yellowish light has a stronger influence on the internal clock than bluish light," says Blume. To resolve whether the way cones perceive a range of wavelengths carries any weight in how the blue-triggered ipRGCs function, Blume and her team recruited eight healthy adult men and eight women in a 23-day-long experiment. After habituating to a specific bedtime for a week, the volunteers attended three visits to a lab where they were exposed to a constant controlled 'white' glow, a bright yellow, or dim blue light for one hour in the evening...

None of the analyses revealed any indication that the perceived color of the light affected the duration or quality of the volunteers' sleep patterns. Instead, all three light conditions caused a sleep delay, suggesting light in general has a more complicated impact than previously thought. That's not to say ipRGCs aren't affected by 'blue' wavelengths of light. Rather, white light that is packed with blue waves but stimulates cone cells into seeing yellows, reds, or purples could still affect our sleep cycles. Similarly, light that looks blue but isn't intense enough to provoke the ipRGCs into functioning might have little influence over our body's daily rhythms.

Phones of the future may one day allow us to switch into a night mode that we don't perceive in warmer tones.
Thanks to long-time Slashdot reader schwit1 for sharing the article.

The fuel-leaking Peregrine lunar lander is now "on a parth towards Earth," according to Update #16 from Astrobotic, which predicts their spacecraft "will likely burn up in the Earth's atmosphere." "Our analysis efforts have been challenging due to the propellant leak... The team is currently assessing options and we will update as soon as we are able. The propellant leak has slowed considerably to a point where it is no longer the teams' top priority...

We have now been operating in space for 5 days and 8 hours and are about 242,000 miles from Earth.
"A soft landing on the Moon is not possible," the announcement emphasizes. NDTV explains: Shortly after it separated from the rocket, the spaceship experienced an onboard explosion and it soon became clear it would not make a soft lunar touchdown because of the amount of the propellant it was losing — though Astrobotic's team were able to power up science experiments they were carrying for NASA and other space agencies, and gather spaceflight data...

Astrobotic itself will get another chance in November with its Griffin lander transporting NASA's VIPER rover to the lunar south pole.

porkchop_d_clown (Slashdot reader #39,923) writes: MOND — MOdified Newtonian Dynamics is a hypothesis that Newton's law of gravity is incorrect under some conditions. Now a paper claims that a study does indeed show that pairs of widely separated binary stars do show a deviation from Newton's Second Law, arguing that, at very low levels, gravity is stronger than the law predicts.
Phys.org writes that the study "reinforces the evidence for modified gravity that was previously reported in 2023 from an analysis of the orbital motions of gravitationally bound, widely separated (or long-period) binary stars, known as wide binaries."

But RockDoctor (Slashdot reader #15,477) calls the hypothesis "very much disputed." YouTubing-astrophysicist Dr Becky considered this report a couple of months ago (2023-Nov-09), under the title "HUGE blow for alternate theory of gravity MOND". At the very least, astrophysicists and cosmologists are deeply undecided whether this data supports or discourages MOND. (Shortened comment because verification problem.)

Last week, I updated my annual count of MOND and other "alternative gravity" publications. While research on MOND (and others) continues, and any "suppression" the tin-foil-hat brigade want to scream about is ineffective, it remains an unpopular (not-equal-to "suppressed") field. Generally, astronomical publication counts are increasing, and MOND sticks with that trend. If anything is becoming more popular, it's the "MOG" type of "MOdified Gravity".

"For months, bits of an asteroid collected by a U.S. probe during a billion-mile trek were out of reach to scientists," reports Space.com, "locked inside a return capsule in a NASA facility with two stuck fasteners preventing access to the rocky space treasure.

"This week, NASA won its battle against those fasteners."

More details from CNN: The space agency already harvested about 2.5 ounces (70 grams) of rocks and dust from its OSIRIS-REx mission, which traveled nearly 4 billion miles to collect the unprecedented sample from the near-Earth asteroid called Bennu. But NASA revealed in October that some material remained out of reach in a capsule hidden inside an instrument called the Touch-and-Go Sample Acquisition Mechanism — a robotic arm with a storage container at one end that collected the sample from Bennu. The sampler head is held shut by 35 fasteners, according to NASA, but two of them proved too difficult to open.

Prying the mechanism loose is no simple task. The space agency must use preapproved materials and tools around the capsule to minimize the risk of damaging or contaminating the samples. These "new tools also needed to function within the tightly-confined space of the glovebox, limiting their height, weight, and potential arc movement," said Dr. Nicole Lunning, OSIRIS-REx curation lead at NASA's Johnson Space Center in Houston, in a statement. "The curation team showed impressive resilience and did incredible work to get these stubborn fasteners off the TAGSAM head so we can continue disassembly. We are overjoyed with the success."
To address the issue, NASA said they designed and fabricated two new, multi-part tools out of surgical steel. NASA says that a "few additional disassembly steps" still remain, but there's a video on their web site showing the operation (along with some pictures).

NASA adds that "Later this spring, the curation team will release a catalog of the OSIRIS-REx samples, which will be available to the global scientific community." But CNN notes that an analysis of material from last fall "already revealed the samples from the asteroid contained abundant water in the form of hydrated clay minerals as well as carbon," CNN reports. And they add that scientists believe this bolsters the theory that water arrived on Earth billions of years ago on an asteroid...

After years of development, NASA has unveiled the X-59 supersonic jet capable of breaking the sound barrier without producing a thunderous sonic boom. "Instead, the Quesst will make a much quieter 'thump,' similar to the sound of a car door slamming as heard from indoors," reports Space.com. "If successful, the jet has the potential to revolutionize supersonic flight and aviation in general." From the report: NASA and Lockheed Martin showed off the finished X-59 Quesst ("Quiet SuperSonic Technology") today (Jan. 12) in front of a crowd of nearly 150 at the legendary Lockheed Martin Skunk Works facility in Palmdale, California, a research and development site typically known for its secrecy. The elongated beak-like nose section of the aircraft stood out prominently, showing off the fact that it does not have a forward-facing window. [...] Instead, it features what NASA calls the eXternal Vision System, or XVS, which consists of a camera and a cockpit-mounted screen that offers pilots an augmented-reality view of what's in front of the jet.

Jim Free, NASA's associate administrator, continued this sentiment, noting that the X-59 is merely the latest in a long line of NASA X-planes that have revolutionized aviation throughout the agency's history. "Even among other X-planes, the X-59 is special. Every aircraft that receives that X-plane designation has a specific purpose to test new technologies or aerodynamic concepts," Free said, "These special planes push the envelope of what's possible in flight. And once they prove those concepts, they often go into museums. And that's really what makes the X-59 different."

Free was referring to the fact that once the X-59 is ready for flight, the jet will make multiple flights over select residential areas in the United States in order to collect data on how people on the ground below experience and react to the quieter sonic booms it creates. NASA will then use that data to seek approval for commercial supersonic flights from regulatory agencies such as the Federal Aviation Administration, with the ultimate goal of making aviation more sustainable and enabling faster flight over populated areas. Some of the applications of supersonic flight mentioned at today's unveiling include rapid medical response, shorter shipping times and, of course, faster travel. "The first 'A' in NASA stands for aeronautics," said NASA Deputy Administrator Pam Melroy during the unveiling ceremony. "And we're all about groundbreaking aerospace innovation. The X-59 proudly continues this legacy, representing the forefront of technology driving aviation forward." The 'X' in NASA's latest X-plane stands for 'experimental.'

"This isn't just an airplane, this is an X-plane," Melroy added. "It's the manifestation of a collaborative genius."

An anonymous reader quotes a report from the New York Times: In an unmarked laboratory stationed between the campuses of Harvard and the Massachusetts Institute of Technology, a splinter group of scientists is hunting for the next billion-dollar drug. The group, bankrolled with $500 million from some of the wealthiest families in American business, has created a stir in the world of academia by dangling seven-figure paydays to lure highly credentialed university professors to a for-profit bounty hunt. Its self-described goal: to avoid the blockages and paperwork that slow down the traditional paths of scientific research at universities and pharmaceutical companies, and discover scores of new drugs (at first, for cancer and brain disease) that can be produced and sold quickly.

Braggadocio from start-ups is de rigueur, and plenty of ex-academics have started biotechnology companies, hoping to strike it rich on their one big discovery. This group, rather boastfully named Arena BioWorks, borrowing from a Teddy Roosevelt quote, doesn't have one singular idea, but it does have a big checkbook. "I'm not apologetic about being a capitalist, and that motivation from a team is not a bad thing," said the technology magnate Michael Dell, one of the group's big-money backers. Others include an heiress to the Subway sandwich fortune and an owner of the Boston Celtics. The wrinkle is that for decades, many drug discoveries have not just originated at colleges and universities, but also produced profits that helped fill their endowment coffers. The University of Pennsylvania, for one, has said it earned hundreds of millions of dollars for research into mRNA vaccines used against Covid-19. Under this model, any such windfall would remain private. [...]

The five billionaires backing Arena include Michael Chambers, a manufacturing titan and the wealthiest man in North Dakota, and Elisabeth DeLuca, the widow of a founder of the Subway chain. They have each put in $100 million and expect to double or triple their investment in later rounds. In confidential materials provided to investors and others, Arena describes itself as "a privately funded, fully independent, public good." Arena's backers said in interviews that they did not intend to entirely cut off their giving to universities. Duke turned down an offer from Mr. Pagliuca, an alumnus and board member, to set up part of the lab there. Mr. Dell, a major donor to the University of Texas hospital system in his hometown, Austin, leased space for a second Arena laboratory there. [Stuart Schreiber, a longtime Harvard-affiliated researcher who quit to be Arenaâ(TM)s lead scientist] said it would require years -- and billions of dollars in additional funding -- before the team would learn whether its model led to the production of any worthy drugs. "Is it going to be better or worse?" Dr. Schreiber said. "I don't know, but it's worth a shot."

An anonymous reader shares a report: "Do you think that every fingerprint is actually unique? "It's a question that a professor asked Gabe Guo during a casual chat while he was stuck at home during the Covid-19 lockdowns, waiting to start his freshman year at Columbia University. "Little did I know that conversation would set the stage for the focus of my life for the next three years," Guo said. Guo, now an undergraduate senior in Columbia's department of computer science, led a team that did a study on the subject, with the professor, Wenyao Xu of the University of Buffalo, as one of his coauthors. Published this week in the journal Science Advances, the paper seemingly upends a long-accepted truth about fingerprints: They are not, Guo and his colleagues argue, all unique.

In fact, journals rejected the work multiple times before the team appealed and eventually got it accepted at Science Advances. "There was a lot of pushback from the forensics community initially," recalled Guo, who had no background in forensics before the study. "For the first iteration or two of our paper, they said it's a well-known fact that no two fingerprints are alike. I guess that really helped to improve our study, because we just kept putting more data into it, (increasing accuracy) until eventually the evidence was incontrovertible," he said.

Emily Anthes reports via the New York Times: In late 2019, scientists began searching for 10,000 Americans willing to enroll their pets in an ambitious new study of health and longevity in dogs. The researchers planned to track the dogs over the course of their lives, collecting detailed information about their bodies, lifestyles and home environments. Over time, the scientists hoped to identify the biological and environmental factors that kept some dogs healthy in their golden years -- and uncover insights about aging that could help both dogs and humans lead longer, healthier lives. Today, the Dog Aging Project has enrolled 47,000 canines and counting, and the data are starting to stream in. The scientists say that they are just getting started. "We think of the Dog Aging Project as a forever project, so recruitment is ongoing," said Daniel Promislow, a biogerontologist at the University of Washington and a co-director of the project. "There will always be new questions to ask. We want to always have dogs of all ages participating."

But Dr. Promislow and his colleagues are now facing the prospect that the Dog Aging Project might have its own life cut short. About 90 percent of the study's funding comes from the National Institute on Aging, a part of the National Institutes of Health, which has provided more than $28 million since 2018. But that money will run out in June, and the institute does not seem likely to approve the researchers' recent application for a five-year grant renewal, the scientists say. "We have been told informally that the grant is not going to be funded," said Matt Kaeberlein, the other director of the Dog Aging Project and a former biogerontology researcher at the University of Washington. (Dr. Kaeberlein is now the chief executive of Optispan, a health technology company.) The N.I.A. could still choose to provide more funding for the Dog Aging Project at some point, but if the researchers don't bring in more money in the coming months, they will have to pause or pare back the study. "It's almost an emergency," said Stephanie Lederman, the executive director of the nonprofit American Federation for Aging Research. "It's one of the most important projects in the field right now." [...]

The institute's immediate priority is to raise enough money to keep the Dog Aging Project afloat. It would take about $7 million to conduct the research the team had planned to do over the next year, but $2 million would be enough to "keep the lights on," Dr. Promislow said. The institute is still awaiting its official tax exempt status but is already seeking donations. "We haven't yet identified a dog-loving billionaire interested in supporting aging research," Dr. Promislow said. "But we're certainly going to try."

An anonymous reader quotes a report from The Guardian: The stream through western Alaska never looked like this before. In aerial photography from the 1980s, it wove cleanly through the tundra, thin as thread. Today, in satellite images, it appears as a string of black patches: one large pond after another, dozens of meters apart. It's a transformation that is happening across the Arctic, the result of landscape engineering on an impressive scale. But this is no human endeavor to reshape the world. It is the work of the North American beaver, and there is no sign of it stopping. Were the waddling rodents making minor inroads, researchers may never have noticed. But the animals are pouring in, pushing north into new territories. The total number of animals is far from clear, but the ponds they create are hard to miss: in the Arctic tundra of Alaska alone, the number of beaver ponds on streams have doubled to at least 12,000 in the past 20 years. More lodges are dotted along lakes and river banks.

The preponderance of beavers, which can weigh as much as 45kg, follows a collapse in trapping and the warming of a landscape that once proved too bleak for occupation. Global heating has driven the shrubification of the Arctic tundra; the harsh winter is shorter, and there is more free-running water in the coldest months. Instead of felling trees for their dams, the beavers construct them from surrounding shrubs, creating deep ponds in which to build their lodges. The new arrivals cause plenty of disruption. For some communities, the rivers and streams are the roads of the landscape, and the dams make effective roadblocks. As the structures multiply, more land is flooded and there can be less fresh water for drinking downstream. But there are other, less visible effects too. The animals are participants in a feedback loop: climate change opens the landscape to beavers, whose ponds drive further warming, which attracts even more paddle-tailed comrades. Physics suggested this would happen. Beaver ponds are new bodies of water that cover bare permafrost. Because the water is warm -- relatively speaking -- it thaws the hard ground, which duly releases methane, one of the most potent greenhouse gases.

Scientists now have evidence this is happening. Armed with high-resolution satellite imagery, Tape and his colleagues located beaver ponds in the lower Noatak River basin area of north-western Alaska. They then analyzed infrared images captured by Nasa planes flying over the region. Overlaying the two revealed a clear link between beaver ponds and methane hotspots that extended for tens of meters around the ponds. "The transformation of these streams is a positive feedback that is accelerating the effects of climate change, and that is what's concerning," says Tape. "They are accelerating it at every one of these points." Because the Nasa images give only a snapshot in time, the researchers will head out next year to measure methane on the ground. With more measurements, they hope to understand how the emissions vary with the age of beaver ponds: do ponds release a steady flow of methane, or does the release wane after a decade or two? "What's happening here is happening on a huge scale," says Ken Tape, an ecologist at the University of Alaska, Fairbanks, who is tracking the influx of beavers into the sparse northern landscape. "Our modeling work, which is in progress right now, shows that this entire area, the north slope of Alaska, will be colonized by beavers by 2100."

In order to reach places like Alpha Centauri this century, we'll need to utilize gram-scale spacecraft that rely on directed-energy propulsion. To that end, NASA has selected the Swarming Proxima Centauri project for Phase I development as part of this year's NASA Innovative Advanced Concepts (NIAC) program. According to Universe Today, Swarming Proxima Centauri is "a collaborative effort between Space Initiatives Inc. and the Initiative for Interstellar Studies (i4is) led by Space Initiative's chief scientist Marshall Eubanks." From the report: According to Eubanks, traveling through interstellar space is a question of distance, energy, and speed. At a distance of 4.25 light-years (40 trillion km; 25 trillion mi) from the Solar System, even Proxima Centauri is unfathomably far away. To put it in perspective, the record for the farthest distance ever traveled by a spacecraft goes to the Voyager 1 space probe, which is currently more than 24 billion km (15 billion mi) from Earth. Using conventional methods, the probe accomplished a maximum speed of 61,500 km/h (38,215 mph) and has been traveling for more than 46 years straight.

In short, traveling at anything less than relativistic speed (a fraction of the speed of light) will make interstellar transits incredibly long and entirely impractical. Given the energy requirements this calls for, anything other than small spacecraft with a maximum mass of a few grams is feasible. [...] In contrast, concepts like Breakthrough Starshot and the Proxima Swarm consist of "inverting the rocket" -- i.e., instead of throwing stuff out, stuff is thrown at the spacecraft. Instead of heavy propellant, which constitutes the majority of conventional rockets, the energy source for a lightsail is photons (which have no mass and move at the speed of light). But as Eubanks indicated, this does not overcome the issue of energy, making it even more important that the spacecraft be as small as possible. "Bouncing photons off of a laser sail thus solves the speed-of-stuff problem," he said. "But the trouble is, there is not much momentum in a photon, so we need a lot of them. And given the power we are likely to have available, even a couple of decades from now, the thrust will be weak, so the mass of the probes needs to be very small -- grams, not tons."

Their proposal calls for a 100-gigawatt (GW) laser beamer boosting thousands of gram-scale space probes with laser sails to relativistic speed (~10-20% of light). They also proposed a series of terrestrial light buckets measuring a square kilometer (0.386 mi2) in diameter to catch the light signals from the probes once they are well on their way to reaching Proxima Centauri (and communications become more difficult). By their estimates, this mission concept could be ready for development around midcentury and could reach Proxima Centauri and its Earth-like exoplanet (Proxima b) by the third quarter of this century (2075 or after). [...] Eubanks and his colleagues hope that the development of a coherent swarm of robotic probes will have applications closer to home. Swarm robotics is a hot field of research today and is being investigated as a possible means of exploring Europa's interior ocean, digging underground cities on Mars, assembling large structures in space, and providing extreme weather tracking from Earth's orbit. Beyond space exploration and Earth observation, swarm robotics also has applications in medicine, additive manufacturing, environmental studies, global positioning and navigation, search and rescue, and more.

Astronomers using NASA's Hubble Space Telescope have found a rare event in an oddball place. NASA reports: It's called a fast radio burst (FRB), a fleeting blast of energy that can -- for a few milliseconds -- outshine an entire galaxy. Hundreds of FRBs have been detected over the past few years. They pop off all over the sky like camera flashes at a stadium event, but the sources behind these intense bursts of radiation remain uncertain. This new FRB is particularly weird because it erupted halfway across the universe, making it the farthest and most powerful example detected to date.

And if that's not strange enough, it just got weirder based on the follow-up Hubble observations made after its discovery. The FRB flashed in what seems like an unlikely place: a collection of galaxies that existed when the universe was only 5 billion years old. The large majority of previous FRBs have been found in isolated galaxies. FRB 20220610A was first detected on June 10, 2022, by the Australian Square Kilometer Array Pathfinder (ASKAP) radio telescope in Western Australia. The European Southern Observatory's Very Large Telescope in Chile confirmed that the FRB came from a distant place. The FRB was four times more energetic than closer FRBs.

"It required Hubble's keen sharpness and sensitivity to pinpoint exactly where the FRB came from," said lead author Alexa Gordon of Northwestern University in Evanston, Illinois. "Without Hubble's imaging, it would still remain a mystery as to whether this was originating from one monolithic galaxy or from some type of interacting system. It's these types of environments -- these weird ones -- that are driving us toward better understanding the mystery of FRBs." Hubble's crisp images suggest this FRB originated in an environment where there may be as many as seven galaxies on a possible path to merging, which would also be very significant, researchers say.

NASA has postponed its plans to send humans to the moon after delays hit its hugely ambitious Artemis programme, which aims to get spaceboots bouncing again on the lunar surface for the first time in half a century. From a report: The US space agency has announced the Artemis III mission to land four astronauts near the lunar south pole will be delayed a year until September 2026. Artemis II, a 10-day expedition to send a crew around the moon and back to test life support systems, will also be pushed back to September 2025.

NASA said the delays would allow its teams to work through development challenges associated with the programme, which partners with private companies including Elon Musk's SpaceX and Lockheed Martin and uses some largely untested spacecraft and technology. "We are returning to the moon in a way we never have before, and the safety of our astronauts is Nasa's top priority as we prepare for future Artemis missions," said the Nasa administrator Bill Nelson. Washington wants to establish a long-term human presence outside Earth's orbit, including construction of a lunar base camp as well as a space station that circles the moon. Its ultimate plans are to send people to Mars, but it has decided to return to the moon first to learn more about deep space before embarking on what would be a months-long voyage to the red planet.

Researchers have designed an app to reduce the impact of tinnitus, an often debilitating condition that manifests via a ringing sound or perpetual buzzing. The Guardian reports: While there is no cure, there are a number of ways of managing the condition, including cognitive behavioural therapy (CBT). This helps people to reduce their emotional connection to the sound, allowing the brain to learn to tune it out. However, CBT can be expensive and difficult for people to access. Researchers have created an app, called MindEar, that provides CBT through a chatbot with other approaches such as sound therapy. "What we want to do is empower people to regain control," said Dr Fabrice Bardy, the first author of the study from the University of Auckland -- who has tinnitus.

Writing in the journal Frontiers in Audiology and Otology, Bardy and colleagues report how 28 people completed the study, 14 of whom were asked to use the app's virtual coach for 10 minutes a day for eight weeks. The other 14 participants were given similar instructions with four half-hour video calls with a clinical psychologist. The participants completed online questionnaires before the study and after the eight-week period. The results reveal six participants given the app alone, and nine who were also given video calls, showed a clinically significant decrease in the distress caused by tinnitus, with the extent of the benefit similar for both groups. After a further eight weeks, a total of nine participants in both groups reported such improvements.